[hidden]{display:none!important}
h2{margin:0 0 8px;font-size:19px;line-height:1.3}
h3{margin:0;font-size:16px;line-height:1.35}
.small{font-size:14px}
.demo-banner{background:var(--chip);border-bottom:1px solid var(--chip-edge);color:var(--ink)}
.demo-banner p{margin:0;padding:10px 0;font-size:15px}
.demo-banner a{font-weight:600}
.layout{display:grid;gap:16px;grid-template-columns:minmax(0,1fr);margin-top:8px}
@media (min-width:900px){.layout{grid-template-columns:minmax(0,520px) minmax(0,1fr);align-items:start}}
.side{display:grid;gap:16px;grid-template-columns:minmax(0,1fr);align-content:start}
.play{padding:16px}
#game{width:100%;max-width:480px;aspect-ratio:2/3;margin:0 auto;background:#0b1530;border-radius:10px;overflow:hidden}
#game canvas{display:block}
.hint{margin:12px 0 0;text-align:center}
kbd{font-family:var(--mono);font-size:.9em;padding:1px 6px;border:1px solid var(--edge);border-radius:6px;background:var(--bg2)}
.how{margin:8px 0 12px;padding-left:20px;font-size:15px}
.how li{margin:4px 0}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.card-head h2{margin:0}
.small-btn{min-height:36px;padding:6px 12px;font-size:13px}
.log{list-style:none;margin:10px 0 0;padding:0}
.log li{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:0 12px;padding:8px 0;border-bottom:1px solid var(--edge);font-size:14px}
.log li:last-child{border-bottom:0}
.log .sub{grid-column:1/-1}
.mono{font-family:var(--mono);word-break:break-all}
.sub{display:block;color:var(--muted);font-size:13px}
.res{font-weight:700;font-family:var(--mono)}
.ok{color:var(--good)}
.same{color:var(--ink)}
.no{color:var(--bad)}
pre{margin:10px 0 0;padding:12px 14px;background:var(--bg2);border:1px solid var(--edge);border-radius:10px;overflow-x:auto;font-size:13px;line-height:1.5}
pre code{font-size:13px}
.gate{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;padding:16px;background:rgba(5,10,25,.72);z-index:20}
.gate[hidden]{display:none}
.gate .card{width:100%;max-width:400px;padding:24px}
.gate .card h2{font-size:20px}
.gate .card p{margin:0 0 20px;color:var(--muted)}
.actions{display:flex;gap:12px;flex-wrap:wrap}
.actions button{min-height:44px;padding:0 18px;border:1px solid var(--brand);border-radius:10px;background:var(--brand);color:var(--brand-ink);font:600 15px/1.2 var(--font);cursor:pointer}
.actions button.secondary{background:var(--panel);color:var(--ink);border-color:var(--edge)}
.actions button:focus-visible,.btn:focus-visible{outline:2px solid var(--focus);outline-offset:2px}
.wall{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;padding:16px;background:rgba(5,10,25,.72);z-index:30}
.wall[hidden]{display:none}
.wall-panel{width:100%;max-width:620px;max-height:calc(100vh - 32px);overflow-y:auto;background:var(--panel);color:var(--ink);border:1px solid var(--edge);border-radius:var(--radius);padding:20px}
.wall-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.wall-head h2{margin:0}
.wall-panel>p{margin:8px 0 0}
.link-line code{word-break:break-all;font-size:12px}
.offers{list-style:none;margin:14px 0 0;padding:0;display:grid;gap:10px}
.offer{display:flex;align-items:center;justify-content:space-between;gap:12px 16px;padding:14px;border:1px solid var(--edge);border-radius:12px;background:var(--bg2);flex-wrap:wrap}
.offer>div:first-child{flex:1 1 260px;min-width:0}
.offer p{margin:4px 0 0}
.offer-act{display:flex;align-items:center;gap:12px}
.reward{font-weight:700;white-space:nowrap}
.flow{margin-top:16px;border-top:1px solid var(--edge);padding-top:14px}
.steps{list-style:none;margin:10px 0 0;padding:0;display:grid;gap:10px}
.step{padding:12px 14px;border:1px solid var(--edge);border-left:4px solid var(--brand);border-radius:10px;background:var(--bg2)}
.step p{margin:4px 0 0}
.step pre{margin-top:8px;font-size:12px;white-space:pre-wrap;word-break:break-all}
.extra{list-style:none;margin:10px 0 0;padding:0;font-size:14px;font-weight:600}
.extra li{margin:6px 0}
.flow-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
body.locked{overflow:hidden}